The devs say that players will be able to make a difference on the future of the game’s storyline: “You’ll need to make the ultimate choice between Republic and Empire, a decision that will impact the fate of Iokath and the greater galaxy. As the Alliance Commander, depending on your choice you will join forces with former Companions Malavai Quinn or Elara Dorne. Together you’ll fight to decide who will be victorious and claim the superweapons power.”
And everyone loves Quinn, right? Right? [crickets]
Source: SWTOR